# screen_write_vline

- **Language:** C
- **Kind:** function
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L746
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-function-screen_write_vline/

```c
void screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
```

## Parameters

- `ctx` (`struct screen_write_ctx *`)
- `ny` (`u_int`)
- `top` (`int`)
- `bottom` (`int`)

## Called by

- [`window_tree_draw_session`](/en/tmux/latest/reference/c-function-window-tree-c-window_tree_draw_session/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/window-tree.c#L498)
- [`window_tree_draw_window`](/en/tmux/latest/reference/c-function-window-tree-c-window_tree_draw_window/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/window-tree.c#L636)

## Calls

- [`screen_write_putc`](/en/tmux/latest/reference/c-function-screen_write_putc/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L758)
- [`screen_write_set_cursor`](/en/tmux/latest/reference/c-function-screen-write-c-screen_write_set_cursor/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/screen-write.c#L760)

## Referenced declarations

- [`grid_cell.attr`](/en/tmux/latest/reference/c-struct-grid_cell-attr/) (attribute)
- [`screen.cx`](/en/tmux/latest/reference/c-struct-screen-cx/) (attribute)
- [`screen.cy`](/en/tmux/latest/reference/c-struct-screen-cy/) (attribute)
- [`GRID_ATTR_CHARSET`](/en/tmux/latest/reference/c-define-tmux-h-grid_attr_charset/) (constant)
- [`grid_default_cell`](/en/tmux/latest/reference/c-variable-grid_default_cell/) (attribute)
- [`screen_write_ctx.s`](/en/tmux/latest/reference/c-struct-screen_write_ctx-s/) (attribute)
- [`screen_write_ctx`](/en/tmux/latest/reference/c-struct-screen_write_ctx/) (struct)